There are total 3 hours or 180 minutes from 7pm to 10pm. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 12AM to 4AM | 9AM to 12AM | 5PM to 12PM |
| 2PM to 4PM | 1PM to 12AM | 5AM to 2AM |
| 9PM to 9AM | 9PM to 8AM | 1PM to 8PM |
| 10AM to 12AM | 1AM to 6AM | 1AM to 7AM |
| 3PM to 6PM | 4AM to 5AM | 12AM to 8PM |
| 7PM to 4PM | 6AM to 2PM | 5AM to 8PM |
